My head lights wont come on. Then running lights work. The other day i wiggled the neg battery cable and they came on. Later that night they faded off so I relpaced the battery connecter and now I cant get them to come on at all. I checked all the fuses and even replaced the light switch and the relays. Please Help

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a short will blow a fuse what you have is something stating on most common is a bad power antenna but remove the neg cable and place a test light between the battery and the neg cable remove fuses till the light goes dim the removed fuse that allows the light to go dime is the draw on the battery also a bad diode in the alternator will drain it as well so unplug and unbolt that as well

If it was an alternator related problem the car would die while it was running. it could still be a bad battery. i have gotten a few new batteries that were bad.

try this:-drive the car for about 15 mins to make sure the battery has a good charge-after you park it, then disconnect the (-) neg cable from the battery-let the car sit over night with the battery disconnected-the next day hook the (-) neg cable back up to the battery and try to start the car

if the battery is good, it will start normallyif its bad you'll get the -no start- problem

If the battery is good, you have a parasitic drain some where in you electrical system.

CHECK ALTERNATOR OUT PUT SHOULD BE 13.5 VOLTS TO 14.5 VOLTS.IF NOT ALTERNATOR IS NOT CHARGING BATTERY.CHECK ALTERNATOR FUSE AND CHECK ALTERNATOR POSITIVE FEED WIRE AND VOLTAGE REGULATOR WIRES.IF ALL IS GOOD ALTERNATOR NEED TESTING AND REPLACED.IF ALTERNATOR GOOD BATTERY CABLES COULD BE OLD CAUSING POOR GROUND AND HIGH RESISTANCE IN POSITIVE CIRCUIT. STARTER SOLENOID FAULTY IF NOT BEEN REPLACED.

Disconnect the negative battery cable and put a test light between the cable end and the neg post. If there is a draw, the light will light. Remember the doors need to be closed and the underhood light disconnected (these are draws as well). If the light is lit there is a draw. Removing fuses until the light goes out can pinpoint the circuit. Finding the actual short can tougher.

Something is draining the battery, Is the battery drained after sitting over night or within driven miles. If it drains over night power is being puled from a source, or the voltage regulator inside the alternator is pulling the power and draining you battery.

dear friend-the voltage that you are measuring is battery voltage and as soon as you try to start the vehicle it will drop to 9 volt which is not enought to start.if you remove the pos,battery clamp and put a test light between the pole and the terminal and and the light lites up then there is a draw running the battery flat.

sounds like a 12V drain on the system, like a trunk or glove box light that won't shut off.> Could be many. many other reasons why. The way I would find the draining circuit would be to remove the neg cable of the battery. I then would connect a 12V test light between the neg battery TERMINAL and the neg battery CABLE. With a 12V drain the light will shine. I would install into the light a 9V battery powered recepticle to hold computer and radio station memory. Then I remove fuses 1 at a time, then reinstall, at the same time looking for the 12V light to go out. Hope this helps.